Magnesium orotate supports cardiovascular function Mag-K-Taurine is an electrolyte formula containing magnesium, potassium, and taurine. Magnesium and potassium are essential for nerve, muscle, and acid- base balance. Taurine supports cardiovascular health, especially in synergy with these minerals. Ideal for correcting deficiencies caused by stress or poor diet, improving heart and muscle function.